Prime Minister Boris Johnson speaking at a media briefing in Downing Street, London, on coronavirus (COVID-19) as he ordered pubs and restaurants across the country to close tonight as the Government announced unprecedented measures to cover the wages of workers who would otherwise lose their jobs due to the coronavirus outbreak.

Boris Johnson has warned the NHS could be “overwhelmed” if people do not act to slow the “accelerating” spread of coronavirus, as he urged people not to visit loved ones on Mother’s Day.

The PM called on people to join a “heroic and collective national effort” and follow social distancing advice.

The number of people who have died in the UK with coronavirus rose to 233 on Saturday, as cases topped 5,000.

It comes as NHS England plans to write to 1.5 million people most at risk.

Those at-risk people will receive letters or text messages strongly advising them not to go out for 12 weeks to protect themselves, the government said.

They include people who have received organ transplants, are living with severe respiratory conditions such as cystic fibrosis or specific cancers such as blood or bone marrow.

In a message to the country on Saturday evening, Mr Johnson said: “The numbers are very stark, and they are accelerating.

“The Italians have a superb health care system. And yet their doctors and nurses have been completely overwhelmed by the demand,” he said.

“The Italian death toll is already in the thousands and climbing. Unless we act together, unless we make the heroic and collective national effort to slow the spread – then it is all too likely that our own NHS will be similarly overwhelmed.”

He added he recognised the government was imposing measures “never seen before either in peace or war” – but said they were essential.

‘Cannot sugar coat threat’

As families prepare to celebrate Mother’s Day on Sunday, Mr Johnson said the best single present for mothers was to stay away.

It comes after the government told all restaurants, cafes and pubs – as well as some other public spaces like gyms and cinemas – to close.

“This time the best thing is to ring her, video call her, Skype her, but to avoid any unnecessary physical contact or proximity,” the PM said.

“And why? Because if your mother is elderly or vulnerable, then I am afraid all the statistics show that she is much more likely to die from coronavirus, or Covid-19. We cannot disguise or sugar coat the threat.”

On Friday, Mr Johnson was asked at his daily press conference whether he would be visiting his own mother, who is 77. He said he would “certainly be sending her my very best wishes and hope to get to see her”.

A Downing Street source later said his contact with his mother on Sunday would be over Skype.

Meanwhile, the government has said members of the Armed Forces will help ensure essential items like groceries can be delivered to people who are at-risk.

The people identified as the most vulnerable in their communities will be contacted directly as a priority.

Dr Paul Johnstone from Public Health England said: “The NHS are contacting the people who are most vulnerable to developing a very serious illness as a result of Covid-19 with specific advice to stay at home for at least 12 weeks.

“If you receive a letter it is vitally important that you act on it for your own protection, don’t attend any gatherings of friends or families and don’t go out for shopping, leisure or travel.

“Those of us who are less at risk can play our part in protecting other people by following the government’s advice on social distancing and volunteering to give extra support to vulnerable people who are staying at home.”

According to the latest figures, there are more than 5,000 confirmed cases of coronavirus in the UK.

The number of people with coronavirus who have died is now 220 in England, seven in Scotland, five in Wales and one in Northern Ireland.

The most recent 53 deaths in England were people aged 41 to 94 who had underlying health conditions, the NHS said.

In the last 48 hours, thousands of retired medics have answered the government’s call to return to work to help with the outbreak – including 4,000 nurses and 500 doctors.

Earlier, the NHS announced it had struck a deal with private hospitals to get hold of thousands of extra beds, ventilators and medical staff.

The agreement will see the private sector reallocate almost its entire national hospital capacity to the NHS. Under the terms of the deal, the private sector will be reimbursed at cost, meaning no profit will be made for doing so.

In other developments:

  • Shoppers have been told to “be responsible” and think of others such as NHS workers, after widespread panic-buying. The government also said there is no shortage of food
  • John Lewis is the latest High Street shop to close all of its stores. However, Waitrose shops will stay open, apart from those in department stores at Watford, Southampton and Bluewater
  • Sandwich chain Pret a Manger has announced the closure of all its 400 UK outlets from Saturday evening
  • Trade unions and a former minister have called for financial help for self-employed workers in the UK. It comes after the government promised to pay 80% of salaries of staff kept on by employers
  • The Big Issue magazine – which sells around 60,000 copies every week – will stop being sold from next week
  • Homeless people will be housed in hotels in central London to protect them against the virus, the Mayor of London Sadiq Khan said
  • The death toll passes 11,000 worldwide, as confirmed cases of coronavirus pass 280,000